At 26°C, the solubility of sodium chloride is 36 g/100 mL of solution. How would you describe a solution of 10 g of sodium chloride in 100 mL of solution at room temperature? a. saturated b. a nonelectrolyte C. nonionic d. unsatured e. a suspension

The pressure inside the container with 5 moles of gas, 62 liters volume and 222K temperature is 1.46 atm.

Ideal gas law illustrates the relation between pressure, volume and temperature of a gas. It is represented by the equation

PV = nRT

Where P is the pressure, V is the volume, n is the number of moles, R is the gas constant and T is the temperature.

V = 62 liters

n = 5 moles

R = 0.0821  L(atm) mol⁻¹K⁻¹

T = 222K

PV = nRT

P × 62 = 5 × 0.0821 × 222

P = 5 × 0.0821 × 222/62

P = 1.46 atm

To learn more about ideal gas law here

https://brainly.com/question/27870704

#SPJ4

In water, the best nucleophile among the given options is I- (iodide ion).

A nucleophile is a species that donates a pair of electrons to form a new chemical bond. Iodide ion has a larger size compared to chlorine ion (Cl-), which results in a more diffuse negative charge. This increased electron density enhances its nucleophilicity.

Additionally, the larger size of iodide ion reduces the strength of its ionic bond with hydrogen, making it a better leaving group. CH3SCH3 (dimethyl sulfide) and CH3OCH3 (dimethyl ether) are organic compounds and do not exhibit significant nucleophilic behavior in water.

Therefore, I- is the strongest nucleophile among the given options in an aqueous environment.

To know more about nucleophile, refer here:

https://brainly.com/question/30333156#

#SPJ11

The atom in the Br-F molecule that possesses a partial negative charge is Fluorine, F.

The tendency of an atom to attract electrons towards itself is called as electronegativity. It increases from left to right across period due to increase in the number of charges on the nucleus.

In the periodic table, down the group electronegativity decreases. So, fluorine is more electronegative than bromine,  which means that it attracts the valence electrons more strongly towards itself, causing a partial negative charge to develop on the fluorine atom.

Electronegativity decreases from top to bottom down the group because there is an increase in the atomic number and  increase in the atomic radius, therefore distance between the valence electrons and nucleus increases.

To know more about electronegativity here

https://brainly.com/question/31327833

#SPJ4

The conjugate base of a compound is what this compound will be after donating a H⁺.

The comopund in question is H₂BO₃⁻. After it loses 1 H⁺, it will have one less H atom and its charge decrease by one. Its charge is only with a "-" sign, which means its chargeis 1-. After decreasing by one, the charge becomes 2-.

So, the conjugate base will be HBO₃²⁻

Answer:

Aqua regia is a corrosive, fuming yellow solution that is a 1:3 mixture of concentrated nitric and hydrochloric acids.

Aqua regia is a mixture of hydrochloric acid (HCl) and nitric acid (HNO3) at a ratio of either 3:1 or 4:1. It is a reddish-orange or yellowish-orange fuming liquid. The term is a Latin phrase, meaning "king's water". The name reflects the ability of aqua regia to dissolve the noble metals gold, platinum, and palladium.

Answer:

This is because it is a physical change not a chemical change.

the equilibrium constant for the given reaction at 298 K is 8.96 x 10^-7.

The equilibrium constant for the given reaction, CIO(g) + O2(g) → Cl(g) + O3(g), at 298 K can be determined using the Gibbs free energy of the reaction and the following equation:ΔG° = - RT lnK

where ΔG° is the standard Gibbs free energy change, R is the gas constant, T is the temperature in Kelvin, and K is the equilibrium constant.

The equation can be rearranged to solve for K:K = e^(-ΔG°/RT)where e is the natural logarithmic base, and all other variables are the same as in the previous equation.Substituting the given values,

we have:ΔG° = 34.5 kJ/molR = 8.314 J/(mol·K)T = 298 K

Using these values, we get:-

ΔG°/RT = (-34.5 × 10^3 J/mol) / (8.314 J/(mol·K) × 298 K)

= -13.19e^(-ΔG°/RT) = e^(-13.19) = 8.96 × 10^-7

Therefore, the equilibrium constant for the given reaction at 298 K is 8.96 x 10^-7.

learn more about equilibrium constant here

https://brainly.com/question/3159758

#SPJ11

The original solution made by the chemist was saturated.

The fact that the solution remained clear and colorless even after adding an additional 1.0 g of sodium nitrate indicates that the solution could still dissolve more sodium nitrate. This suggests that the solution was not yet saturated after the initial addition of 3.0 g sodium nitrate, and therefore the chemist added more sodium nitrate to reach saturation.

When the chemist first added 3.0 g of sodium nitrate to 1.0 L of water and the solution became clear and colorless, it indicated that the sodium nitrate completely dissolved in the water. When he added another 1.0 g of sodium nitrate and the solution still remained clear and colorless, it means that the solution was able to dissolve more solute. This characteristic is typical of an unsaturated solution, which is a solution that contains less solute than its saturation point at a given temperature and pressure.

To know more about Saturated., visit;

https://brainly.com/question/388072

#SPJ11

The incompressible assumption is valid for a flow when the Reynolds number is low (Re < 2300) for air and other gases. It is valid for water and other liquids when the Reynolds number is low (Re < 2000).

It is valid for glycerin and other oils when the Reynolds number is low (Re < 100).

Incompressible assumption

For a fluid flow to be considered incompressible, the change in density due to changes in pressure or temperature must be negligible. The fluid is considered to be incompressible if the density changes by less than 5% when the pressure or temperature is varied.

For air, the incompressible assumption is valid for flow velocities less than 2000 feet per minute (fpm) at 20 degrees Celsius. For other gases, the incompressible assumption is valid for velocities less than 100 fpm at the same temperature.

For water, the incompressible assumption is valid for flow velocities less than 3 feet per second (fps) at 20 degrees Celsius. For other liquids, the incompressible assumption is valid for velocities less than 1 fps at the same temperature.

For glycerin and other oils, the incompressible assumption is valid for flow velocities less than 0.2 fps at 20 degrees Celsius.

Learn more about flow velocities: https://brainly.com/question/13385439

#SPJ11

Answer:

Solution. Carbonic acid is a dibasic acid with two replaceable hydrogen ions; therefore it forms one acid salt or one normal salt. Hydrochloric acid is a monobasic acid with one replaceable hydrogen ion and so forms only one normal salt.

Explanation:

Answer:

Hey there! The nuclear symbol for an ion with a charge of +220 protons and 24 neutrons would be written as follows:

220+ 24

The symbol consists of two parts: the atomic number (220+) and the atomic mass (24). The atomic number is the number of protons in the nucleus of an atom, and it is represented by a superscript on the left side of the symbol. The atomic mass is the total number of protons and neutrons in the nucleus, and it is represented by a subscript on the right side of the symbol.

In this case, the atomic number of the ion is 220, which indicates that it has 220 protons in its nucleus. The atomic mass is 24, which indicates that it has a total of 220 protons + 24 neutrons = 244 particles in its nucleus.

________________________________________________________

Nuclear symbols are a way of writing down the important information about atoms and ions in a short and easy-to-read format. They usually consist of two parts: the atomic number and the atomic mass. The atomic number tells us how many protons an atom has in its nucleus, and the atomic mass tells us the total number of protons and neutrons. For example, the nuclear symbol for carbon is 6 12C, which tells us that carbon has 6 protons and 12 particles (6 protons + 6 neutrons) in its nucleus.

To determine the number of protons in an atom or ion, we can look at its atomic number, which is usually written as a superscript on the left side of the nuclear symbol. For example, if the nuclear symbol for an atom or ion is written as 6 12C, we can tell that it has 6 protons. To determine the number of neutrons, we can subtract the atomic number from the atomic mass. For example, if the atomic mass is 12 and the atomic number is 6, then the number of neutrons is 12 - 6 = 6. To determine the number of electrons, we can just look at the overall charge of the atom or ion. If it is neutral, then it will have the same number of protons and electrons. If it is positive or negative, then it will have more or fewer electrons than protons, respectively.

The new volume of the gas cooled at constant pressure until the temperature is 11°C is approximately 3.69 L.

To find the new volume of the gas, we can use Charles's Law, which states that the volume of a gas is directly proportional to its temperature, as long as the pressure and the amount of gas remain constant. The formula for Charles's Law is:

V₁/T₁ = V₂/T₂

where V₁ is the initial volume, T₁ is the initial temperature, V₂ is the final volume, and T₂ is the final temperature. We need to convert the temperatures to Kelvin first:

T₁ = 27°C + 273.15 = 300.15 K
T₂ = 11°C + 273.15 = 284.15 K

Now, we can plug the values into the formula:

(3.9 L) / (300.15 K) = V₂ / (284.15 K)

To find the new volume, V₂:

V₂ = (3.9 L) * (284.15 K) / (300.15 K) = 3.69 L

So, the new volume of the gas when it is cooled to 11°C at constant pressure is approximately 3.69 L.

Learn more about Charles's Law here: https://brainly.com/question/16927784

#SPJ11

O2 debt is the oxygen uptake over and above what would have been the resting value, at the onset of an exercise, where the aerobic metabolic system is not yet meeting the energy demands of the body.

i) O2 debt arises due to the insufficient supply of oxygen to the body's muscles at the start of the exercise as anaerobic respiration starts, which increases oxygen consumption and carbon dioxide production. The anaerobic respiration produces lactic acid that requires oxygen to oxidize and clear away. It takes 30-60 minutes of rest to repay the O2 debt after exercise.
After exercise, ventilation does not return to basal levels until the O2 debt has been repaid. Ventilation remains high after exercise due to the stimulation of the central and peripheral chemoreceptors that sense the elevated levels of CO2 and decreased levels of O2.

ii) During forced expiration, the contraction of the internal intercostal muscles and abdominal muscles causes a decrease in thoracic volume. The decrease in volume of the thorax increases the pressure inside the chest, which pushes the air out of the lungs, enabling more CO2 to be expelled from the lungs. Therefore, during exercise, forced expiration helps the body get rid of carbon dioxide more effectively, making way for fresh oxygen to be taken in.

To know more about lactic acid  , visit;

https://brainly.com/question/490148

#SPJ11

The theoretical yield for this reaction is 78.61 g of CO2 and the percent yield is 20.0%, when 50.0 g of MgCO3 react completely with H3PO4.

The theoretical yield is the maximum amount of product that can be produced from a chemical reaction, calculated using the stoichiometry of the reaction equation. It is based on the assumption that the reaction proceeds perfectly, without any loss or waste of reactants, and without any interference from side reactions.

The theoretical yield is calculated by determining the number of moles of each reactant, using the balanced chemical equation to calculate the number of moles of product that can be produced, and then converting this to the corresponding mass of product. It is a useful reference for determining the efficiency of a reaction and for evaluating the quality of the results obtained in a laboratory experiment.

Calculation of Theoretical yield

To calculate the theoretical yield, determine the number of moles of MgCO3 and use the balanced chemical equation to calculate the number of moles of CO2 produced.

The number of moles of MgCO3 is given by:

n(MgCO3) = m(MgCO3) / M(MgCO3)

n(MgCO3) = 50.0 g / 84.31 g/mol

n(MgCO3) = 0.595 mol

Using the balanced chemical equation, calculate the number of moles of CO2 produced:

n(CO2) = 3 * n(MgCO3)

n(CO2) = 3 * 0.595 mol

n(CO2) = 1.785 mol

The mass of CO2 produced can then be calculated:

m(CO2) = n(CO2) * M(CO2)

m(CO2) = 1.785 mol * 44.01 g/mol

m(CO2) = 78.61 g

This is the theoretical yield for the reaction.

The percent yield is a measure of the efficiency of the reaction, and is calculated as the ratio of the actual yield to the theoretical yield, multiplied by 100:

% yield = (actual yield / theoretical yield) * 100

% yield = (15.8 g / 78.61 g) * 100

% yield = 20.0%

To know more about Theoretical Yield, visit:

https://brainly.com/question/25996347

#SPJ1

Answer: C

Explanation:

Cells have different receptors on their surfaces that are responsive to particular signals (such as hormones). When a signal interacts with the particular receptor, a particular response is invoked in the cell. This signal may be produced even by a cell that may be far away from the target cells. This is how cells communicate with each other to maintain homeostasis in the body.

According to the research, a nuclear reaction releases less energy per gram and appears to violate the law of conservation of mass.

It is a procedure that leads to combining and modifying the nuclei of atoms and subatomic particles and appears to violate the law of conservation of mass.

Through this kind of process, the nuclei can be combined or fragmented, absorbing or releasing particles and energy according to each case.

Therefore, we can conclude that according to the research, a nuclear reaction releases less energy per gram and appears to violate the law of conservation of mass.

Learn more about nuclear reactions here: https://brainly.com/question/1480032

#SPJ1

No, oxidizing p-toluidine with KMnO₄ would not be a faster method to make p-aminobenzoic acid.

While KMnO₄ is a strong oxidizing agent commonly used in oxidation reactions, it may not be suitable for directly converting p-toluidine to p-aminobenzoic acid. The reaction between p-toluidine and KMnO₄ may result in multiple side reactions and undesired products. Additionally, the reaction conditions and reaction kinetics may not be favorable for the direct conversion of p-toluidine to p-aminobenzoic acid using KMnO₄.

To convert p-toluidine to p-aminobenzoic acid, specific reaction conditions and reagents tailored for this transformation are typically employed. These conditions may involve controlled reaction temperatures, specific catalysts, and other reactants that selectively convert p-toluidine to p-aminobenzoic acid with high yield and minimal side reactions.

While KMnO₄ can be a powerful oxidizing agent in certain reactions, its use in the direct conversion of p-toluidine to p-aminobenzoic acid may not be efficient or practical. It is essential to consider the specific reaction mechanisms and conditions required for the desired transformation to achieve the desired product in a reliable and efficient manner.

To learn more about p-aminobenzoic acid, here

https://brainly.com/question/27176895

#SPJ4

Answer:

2.3g

Explanation: my mom is a teacher

CH₄ + 2O₂ → CO₂ + 2H₂O For this reaction the mass of methane gas (CH4) is required in order to follow the Law of Conservation of Mass is 2.3 gram. Therefore, option D is correct.

The Law of Conservation of Mass states that the total mass of the reactant is exactly equal to the total mass of the product.

It is also state that in a chemical reaction mass is neither created nor destroyed. For example, the carbon atom in coal gets carbon dioxide when it is burned.

This law is important in understanding and production of various chemical reactions. If researchers experience the identities alongside the quantities of the reactants for any particular reaction.

According to the Law of Conservation of Mass, In given combustion reaction to obey this law the mass of reactant is 2.3 grams.

Thus, option D is correct.

To learn more about the Law of Conservation of Mass, follow the link;

https://brainly.com/question/28711001

#SPJ6

Answer:

True

Explanation:

Single celled prokaryotic cells use meiosis to reproduce. Its ''TRUE''

A prokaryote is a single-celled organism that lacks a nucleus, and other membrane-bound organelles.

Prokaryotic cells are single-celled microorganisms known to be the earliest on earth.

Prokaryotes include Bacteria and Archaea.

The photosynthetic prokaryotes include cyanobacteria that perform photosynthesis.

A prokaryotic cell consists of a single membrane and therefore, all the reactions occur within the cytoplasm.

Prokaryotes reproduce through a cell division process called binary fission.

Like mitosis in eukaryotes, this process involves copying the chromosome and separating one cell into two.

Hence, Single celled prokaryotic cells use meiosis to reproduce is a ''TRUE'' statement.

Learn more about prokaryotc here ;

https://brainly.com/question/15329345

#SPJ2

Answer: a computer

Explanation:

A voltaic cell is an electrochemical cell that uses spontaneous redox reactions to generate electrical energy. A Cu/Cu2+ half-cell and an Hg/Hg2+ half-cell are included in the voltaic cell. The Cu2+ + 2 e− → Cu reaction has a standard potential of +0.34 V, whereas the Hg2+ + 2 e− → 2 Hg reaction has a standard potential of +0.79 V.

A voltaic cell is an electrochemical cell that uses spontaneous redox reactions to generate electrical energy. A Cu/Cu2+ half-cell and an Hg/Hg2+ half-cell are included in the voltaic cell. The Cu2+ + 2 e− → Cu reaction has a standard potential of +0.34 V, whereas the Hg2+ + 2 e− → 2 Hg reaction has a standard potential of +0.79 V.

Net reaction of voltaic cell: Hg2+ + Cu → Hg + Cu2+

The spontaneous reaction for this voltaic cell can be written as follows: Hg2+ + Cu → Hg + Cu2+

We'll utilize the Nernst equation to calculate the cell potential since the standard reduction potentials for both half-cells are supplied. The equation for the Nernst equation is as follows: E = E° − (RT/nF) * ln(Q)

We'll utilize the following values to calculate the potential of the cell: E°cell = E°reduction (reduction half) - E°reduction (oxidation half)

E°cell = E°reduction (cathode) - E°reduction (anode)

E°cell = 0.79 - 0.34

E°cell = 0.45 Volts

Ecell = E°cell - (0.0592/n) * log(Q)

Ecell = 0.45 - (0.0592/2) * log (1/[Cu2+])

The given half-cell reactions indicate that there is 1 mol of Cu2+ for every 1 mol of Hg2+ reacting. As a result, Q = [Cu2+].

Ecell = 0.45 - (0.0592/2) * log (1/[Cu2+])

Ecell = 0.45 - (0.0296) * log (1/[Cu2+])

Ecell = 0.45 - (0.0296) * log (1/1)

Ecell = 0.45 V (rounded to 2 decimal places).

Hence, the answer is 0.45 V.

To know more about electrochemical cell visit:

https://brainly.com/question/31149864

#SPJ11

Answer:

Have a good day Ahead

:)))))))))((

Answer:

Electrical to mechanical

Explanation:

Unless of course the motor is gasoline or deisel.

mass of Aluminum produced = = 2.647 kg

moles of Oxygen = 73.53 moles

Given

5.0 kg Al₂O₃

Required

moles of Oxygen

Solution

The aluminum oxide gets decompose into aluminum and oxygen gas.

Reaction :

2Al₂O₃(s)⇒ 4 Al(s) + 3O₂(g)

mol of Al₂O₃(MW=102 g/mol) :

= mass : MW

= 5000 g : 102 g/mol

= 49.02 moles

From the equation, mol ratio of Al₂O₃ : O₂ = 2 : 3, sol mol O₂ :

= 3/2 x mol Al₂O₃

= 3/2 x 49.02

= 73.53 moles

mol Al :

= 4/2 x mol Al₂O₃

= 2 x 49.02

= 98.04 moles

Mass Al :

= mol x Ar Al

= 98.04 x 27 g/mol

= 2647.08 g

= 2.647 kg

Answer: 89.7 L

Explanation:

89.6 volume, in liters, does 128 grams of O2 occupy at STP. Therefore, option A is correct.

A volume is simply the amount of space taken up by any three-dimensional solid. A cube, a cuboid, a cone, a cylinder, or a sphere are examples of solids. Volumes differ depending on the shape.

Every three-dimensional object requires some amount of space. The volume of this space is measured. Volume is defined as the space occupied by an object within the boundaries of three-dimensional space. It is also known as the object's capacity.

1 mole Oxygen has mass 32 grams

Mole of Oxygen in 128 g mass = 128 g / 32 g/mol

= 4.0 mol O2

At Standard temperature and pressure this has volume

= 4.0 mol × 22.4 L/mol

= 89.6 L

Thus, 89.6 volume, in liters, does 128 grams of O2 occupy at STP, option A is correct.

To learn more about the volume, follow the link;

https://brainly.com/question/1578538

#SPJ6

Answer:

True

Explanation:

Opposite attract when talking about magnets

Answer:

True.

Explanation:

Opposites attract. The two same forces of the north ends repel each other.

Answer: yes

Explanation:

bilayer of lipids, oily substances found in all cells

The pairs of compounds that are isomers are: CH3CH2CH2CH3 and CH3CH(CH3)CH2CH3, CH3CH2CH2CH2CH(CH2CH2CH3)CH2CH3 and CH3CH2CH2CH2CH2CH3, CH3CH2CH(CH3)CH2CH2CH3 and CH3CH(CH3)CH2CH2CH(CH3)CH3.

Isomers are the molecules which have the same molecular formula but differ in the arrangement of their atoms. The following pairs of compounds are isomers: CH3CH2CH2CH3 and CH3CH(CH3)CH2CH3.CH3CH2CH2CH2CH(CH2CH2CH3)CH2CH3 and CH3CH2CH2CH2CH2CH3.CH3CH2CH(CH3)CH2CH2CH3 and CH3CH(CH3)CH2CH2CH(CH3)CH3.In the first pair of compounds, the molecule on the left is n-butane, while the molecule on the right is 2-methylpropane or isobutane. They are isomers because both have the same molecular formula C4H10, but different structures.2. In the second pair of compounds, the molecule on the left is octane, while the molecule on the right is 2-methylheptane.

These compounds have the same molecular formula, C8H18, but different structures.3. In the third pair of compounds, the molecule on the left is 2-methylpentane, while the molecule on the right is 3-methylpentane.

They are isomers because they have the same molecular formula C6H14, but different structures.4.

In the fourth pair of compounds, the molecule on the left is 2,3-dimethylbutane, while the molecule on the right is 2,4-dimethylpentane.

They are isomers because they have the same molecular formula C8H18, but different structures.5. In the fifth pair of compounds, the molecule on the left is isopropyl group, while the molecule on the right is n-propyl group.

They are isomers because they have the same molecular formula C3H7, but different structures.

In conclusion, the pairs of compounds that are isomers are: CH3CH2CH2CH3 and CH3CH(CH3)CH2CH3, CH3CH2CH2CH2CH(CH2CH2CH3)CH2CH3 and CH3CH2CH2CH2CH2CH3, CH3CH2CH(CH3)CH2CH2CH3 and CH3CH(CH3)CH2CH2CH(CH3)CH3.

To know more about isomers visit:

brainly.com/question/32508297

#SPJ11